Performance considerations during taking back up-- - response (1) by dnoeth

Hi Nishant,
if i had to rank the different scenarios it would be:
#1: first scenario
#2: create table as existing_table with no data plus ins/sel
#3: second scenario
 
- "create table as existing_table" is simply copying datablocks without any spool
- INS/SEL is also not using any spool if source and target have exactly the sams DDL
- MERGE might be more efficient than INS/SEL, but definitely not in this case
Dieter